The Protect-A-Bed Satin Smooth DynaTex Waterproof Mattress Protector for king-size beds delivers exceptional protection and luxurious comfort. Crafted with a soft satin smooth finish, it helps protect your mattress from spills, stains, allergens, and dust mites while allowing airflow for cooler sleep. The waterproof DynaTex technology enhances mattress hygiene and durability without compromising comfort. Its deep fitted skirt securely fits mattresses between 20cm and 50cm in depth.